Tester case



FIG. 1 is a front elevational view of a tester case showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a perspective view thereof in the closed position; and

FIG. 7 is a perspective view thereof in the open position. 

The ornamental design for a tester case, as shown and described. 